On this note, ever since Vanilla I felt instead of going really really heavy industrialization, the Horde should've had a mix of tech and alchemy with a focus on heavy organic stuff.

Even before Gurtogg Bloodboil was first Dire Orc I wanted Dire Orcs and Trolls in the Horde altered by goblin and troll and forsaken alchemy.

I wanted Silithid colossi controlled by pheremone sprays.

I wanted Kodo and Stormlizards bred together to create big, lightning spitting kodo.

The Alliance would do the honorable thing and prove themselves worthy inheritors to the Titans / Elune / Dragons and take up their legacies and build upon them further, but the Horde... in my mind the Horde was meant to Murder the old gods and rip their secrets from their corpses. To tear down demons stick them in crystals and have casters imprison them as they're sucked dry, dissected, and weaponized against the rest of the legion and such.